AI Damage2021 Western Star 57X: common problems
The maker issued 49 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 49
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 0 | 0 | 22 |
| Visibility | 0 | 0 | 16 |
| Exterior lighting | 0 | 0 | 12 |
| Electrical system | 0 | 0 | 5 |
| Steering | 0 | 0 | 3 |
| Powertrain | 0 | 0 | 2 |
| Engine and cooling | 0 | 0 | 1 |
| Equipment | 0 | 0 | 1 |
Comparison
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Visibility. Wipers, mirrors, defrosters, cracked glass.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- CX Advocate for Aftermarket Transmission Support
- Technical Service Bulletin for Fixing Unintended Wiper Sweep
- CX Advocate for ConMet Oil Pan Insert Additional Issues
- CX Advocate for SAS01T to SAS03T replacement (TSB54-373-FTL, TSB54-097-WST)
- CX Advocate for NOx conversion low faults
- CX Advocate for turbo oil drain cracking
- CX Advocate for M2 Plus, 47X, 49X Fault Code 232/524000/19- ECU CPC data error
- Revised Service Solution for X-Series Western Star Fault Code 232/524000/19- ECU CPC data error
- My Communications for Variable Speed Coolant Pump for DD13 Engines - Cascadia/57X Only
- Technical Service Bulletin for SAS01T to SAS03T Replacement Information
- Service Solution for Power Steering Reservoir Fill Cap Venting
- Service Solution for X-Series intermittent no-start and CPC not configured message
NHTSA lists 49 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2021 Western Star 57X?
There are no owner complaints in the NHTSA data for this year; the data comes from 49 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Western Star 57X?
NHTSA lists 49 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2021 Western Star 57X from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2021 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.